Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Vandenberg AFB, CA

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:49AMSunset 8:08PM Saturday May 27, 2017 3:00 AM PDT (10:00 UTC) Moonrise 6:58AMMoonset 9:24PM Illumination 4% Phase: Waxing Crescent; Moon at 2 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ673 Waters From Pt. Sal To Santa Cruz Island Ca And Westward 60 Nm Including San Miguel And Santa Rosa Islands- 232 Am Pdt Sat May 27 2017
.small craft advisory in effect from this afternoon through late tonight...
Today..NW winds 10 to 15 kt...becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 4 to 5 ft dominant period 10 seconds.
Tonight..NW winds 10 to 20 kt with gusts to 25 kt. Combined seas 3 to 4 ft dominant period 10 seconds.
Sun..NW winds 10 to 20 kt with local gusts to 25 kt...becoming 15 to 25 kt with gusts to 30 kt in the afternoon. Combined seas 4 to 5 ft dominant period 9 seconds.
Sun night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 4 to 5 ft dominant period 8 seconds.
Mon..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 4 to 6 ft dominant period 8 seconds.
Mon night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 6 ft dominant period 8 seconds.
Tue..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft.
Wed..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 6 ft.
PZZ600 232 Am Pdt Sat May 27 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z...or 2 am pdt...a 1026 mb high was over the gulf of alaska and a 1006 mb low was near las vegas.

7 Day Forecast for Marine Location Near Vandenberg AFB, CA
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location: 34.55, -121.24     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 270606
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
1106 pm pdt Fri may 26 2017

Synopsis
Night and morning low clouds and fog are expected for the coast
and some valleys through next Friday. Otherwise, clear to party
cloudy skies can be expected through the period. High pressure
will bring warmer temperatures to the area this weekend into
Monday, then low pressure will result in cooler temperatures
Tuesday through late next week.

Short term (fri-mon)
a deep marine layer remains in place across the area as broader
and weaker troughing over the west brushes the region through
Sunday. A rather muttled stratus pattern is prevalent currently as
viewed by the latest fog product. Low confidence exists in the
cloud forecast through Saturday morning as the a weak marine
inversion exists. Stratus clouds will likely struggle to reform
as a result. The best confidence lies for possible broader
reformation late tonight and into Saturday morning.

Strong onshore flow remains in place this evening. A wind
advisory has been extended for the antelope valley into early
Saturday morning as strong southwest winds continue, especially
across the foothill areas. Onshore flow should gradually weaken
through weekend bringing warmer and drier conditions.

*** from previous discussion ***
warming trend to really kick into gear Sunday Monday as high
pressure develops over the west coast and onshore flow continues
to weaken. Likely about 10 degrees of warming for inland areas
Sunday and another 3-5 Monday. Low clouds will continue along the
coast and pushing into the lower valleys each morning.

Long term (tue-fri)
models now in pretty good agreement showing a trough developing
along the west coast Tuesday, though differ on how deep it will
develop through the end of the week. The GFS is quite a bit deeper
than the ECMWF and gem but consistent with what we saw this week.

Regardless a cooling trend will now begin Tuesday and continue
through Thursday, though the extent of the cooling still remains
to be seen. We should be turning the corner by the very end of the
week as the trough or semi-closed upper low moves east and is
replaced by another ridge. Marine lyr will remain a constant for
the coast during the night and morning hours at least and
for the valleys through mid-morning each day. Overall a pretty
quiet week of weather.

Aviation
27 0600z
at 00z, the marine layer depth at klax was near 4200 feet. It was
capped by a weak inversion topping out at 6300 feet with a
temperature of 14 degrees celsius.

Low confidence in the current forecast. The deep marine layer
will likely collapse and then reform. There is a 40 percent chc
that low clouds will not reform this morning. If low clouds do
reform there are equal chances of them forming at either 015 025
or 035.

Klax... Low confidence in taf. There is a 40 percent chc of clear
skies through 06z Sunday. If low clouds do reform there are equal
chances of them forming at either 015 025 or 035.

Kbur... Low confidence in taf. There is a 40 percent chc of cigs
from 10z-17z. If low clouds do reform there are equal chances of
them forming at either 015 025 or 035.

Marine
26 900 pm.

High confidence in sub-advisory wind speeds and seas through
tonight, then low-end small craft advisory conditions will likely
develop from the central coast to san nicolas island late Saturday
afternoon and night. At least, definite small craft advisory
conditions will occur Sunday through Monday with gusts up to 30
kt. Some of the winds will spill into the western half of the
santa barbara channel but likely not enough to warrant a small
craft advisory for the whole channel. These winds will create a
short period chop over all waters including the santa barbara
channel and santa monica basin into Monday.

Lox watches warnings advisories
Ca... Wind advisory in effect until 3 am pdt Saturday for zone 59. (see laxnpwlox).

Pz... Small craft advisory in effect from 3 pm Saturday to 3 am pdt
Sunday for zone 673. (see laxmwwlox).

Hazard potential outlook (mon-fri)
no significant hazards expected.

Public... Hall mw
aviation... Rorke
marine... Hall
synopsis... Sirard
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46218 - Harvest, CA (071) 25 mi61 min 56°F4 ft
46259 26 mi61 min 57°F5 ft
46257 26 mi61 min 55°F4 ft
HRVC1 30 mi49 min 1017.2 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 30 mi71 min NNW 5.8 G 5.8 55°F 55°F4 ft1017.8 hPa (+0.0)
PTGC1 - Point Arguello, CA 31 mi61 min N 14 G 15 54°F 1017.6 hPa (-0.3)
46054 - SANTA BARBARA W 38 NM West of Santa Barbara, CA 45 mi41 min WNW 12 G 16 56°F 57°F1016.5 hPa53°F
46215 - Diablo Canyon, CA (076) 49 mi41 min 52°F3 ft

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA38 mi63 minNNW 310.00 miOvercast54°F53°F98%1017.8 hPa

Wind History from VBG (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmNW3NW3NW6W4NW8W8NW8NW9N9NW8NW8NW8NW5N5N6NW3CalmN4N3
1 day agoCalmCalmSW3CalmSE4CalmSW6SW7S5SW8SW12SW11SW14
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SW14W13W9W7W3CalmSW3W3CalmCalm
2 days agoN5N4NW7N8NW5NW7N6N64N5CalmN10NW7W10W7NW6NW5NW3N3CalmCalmCalmCalmCalm

Tide / Current Tables for Point Arguello, California
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Point Arguello
Click for Map
Sat -- 05:52 AM PDT     Sunrise
Sat -- 06:05 AM PDT     -1.62 feet Low Tide
Sat -- 07:55 AM PDT     Moonrise
Sat -- 12:51 PM PDT     3.86 feet High Tide
Sat -- 05:30 PM PDT     1.92 feet Low Tide
Sat -- 08:07 PM PDT     Sunset
Sat -- 10:21 PM PDT     Moonset
Sat -- 11:42 PM PDT     5.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.84.73.21.5-0.1-1.2-1.6-1.3-0.50.7233.73.93.632.4222.43.24.25.25.8

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Sat -- 05:53 AM PDT     Sunrise
Sat -- 06:02 AM PDT     -1.56 feet Low Tide
Sat -- 07:56 AM PDT     Moonrise
Sat -- 12:38 PM PDT     3.85 feet High Tide
Sat -- 05:19 PM PDT     1.95 feet Low Tide
Sat -- 08:07 PM PDT     Sunset
Sat -- 10:21 PM PDT     Moonset
Sat -- 11:34 PM PDT     6.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
64.83.21.4-0.1-1.2-1.6-1.2-0.40.92.13.23.73.83.52.92.322.12.63.54.65.66.2

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Los Angeles/Oxnard, CA (6,6,7,8)
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Ground Weather Radar Station Vandenberg AFB, CA
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.